Resize the Search Bar in smaller viewport size to keep the Voice Fill button visible

[reinhart1010]

In smaller viewport size or devices, the Voice Fill button is hidden or off the edge. This is because the size of the search bar in most sites is in full-width.

I've managed to get the addon to Firefox for Android, and here is the result.

(Webcompat Issue: webcompat/web-bugs#12552 )

I would like to recommend, that the addon should be able to tweak the search bar width to keep the Voice Fill button visible. Alternatively, the Voice Fill button could be next before the 'Clear Search Query' button to ease access to Voice Fill on smaller viewport or device size.